In the second season episode, "Speed Demons", K.I.T.T. debuts a brand new feature - the High Traction Drop Downs (HTDD) - that allows the supercar to raise his suspension for off-road crimefighting.

This trick was accomplished by modifying the Trans Am's suspension in much the same way that a lowrider is built. The system consisted of four hydraulic cylinders, one at each corner of the car, a hydraulic pump, hydraulic lines and a dump valve.

The Knight Rider Historians currently own the screen used K.I.T.T. that had the HTDD's installed. Unfortunately, most of the system was removed decades ago. Only the front hydraulic cylinders are still installed, which means we need YOUR help to reconstruct this unique setup, ideally using period-correct replacement parts.

We want to reuse the front cylinders and hardware. The cylinders appear to work properly (i.e. no leaks) but we may want to have them rebuilt, if possible.

Please see the images in the Photo Gallery below for details on the existing front cylinders, which are nearly a carbon-copy of what we need for the back. There's also a few photos of a period-correct pump that I am hoping will work.

Also, I am trying to determine if the original setup was simply one switch to raise the entire car and one switch to lower, or if the front and rear were operated independently of each other.

I am looking for a hydraulics expert that can guide me towards getting the correct parts needed to restore this K.I.T.T. back to its full HTDD functionality.